package AMV.Usb;

/**
 * mamenghao
 * 2022/10/179:29 AM
 */
public class TestUsb {
    public static void main(String[] args) {
        Computer mac=new Computer();
        Mouse luoji =new Mouse();
         Upan shandi=new Upan();
         Fan media=new Fan();
         mac.run();
         mac.usb1=luoji;
         mac.usb2=shandi;
         mac.usb3=media;
         mac.run();
    }
}
